/**
 * Copyright 2011-2019 Asakusa Framework Team.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.asakusafw.dag.runtime.jdbc.operation;

/**
 * Represents an operation kind of clearing outputs.
 * @since 0.4.0
 */
public enum OutputClearKind {

    /**
     * Never clear outputs.
     */
    KEEP,

    /**
     * Clear outputs by using {@code DELETE} statement.
     */
    DELETE,

    /**
     * Clear outputs by using {@code TRUNCATE} statement.
     */
    TRUNCATE,
}
